Fingerprint Authentication via Watermarked Display Image
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Solution Overview
Problem
Fingerprint authentication in mobile devices is vulnerable to spoofing attacks and traditional two-factor authentication methods compromise convenience by requiring network access and additional steps.
Innovation Solution
A device and method that generates a watermarked digital image with embedded fingerprint information, allowing users to authenticate by matching user-fingerprint information with image-embedded fingerprint information, eliminating the need for network access and enhancing security with sequence-based authentication.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional two-factor authentication is used with fingerprint, then security is improved, but convenience and ease of usage deteriorate due to requiring network access and additional steps
Solution Approach 1:
The patent combines fingerprint authentication with image-based authentication into a unified system. The fingerprint sensor is integrated with the display device, and the authentication process merges biometric verification with visual recognition of a displayed image containing a sequence code, eliminating the need for separate network-based second factor authentication
Solution Approach 2:
The system uses the device's own display screen to present the authentication image and the integrated fingerprint sensor to capture biometric data, eliminating dependence on external network services. The authentication process is self-contained within the device, improving convenience while maintaining security
2Ease of operation
If fingerprint authentication is used alone, then convenience is improved, but security deteriorates due to vulnerability to spoofing attacks
Solution Approach 1:
The authentication system uses a composite approach combining two different authentication modalities: biometric fingerprint recognition and visual image recognition with sequence verification. This layered authentication mechanism resists spoofing attacks by requiring both biological and cognitive verification, while maintaining user convenience through integration
3Reliability
If two-factor authentication requiring network access is used, then security is improved, but productivity deteriorates due to time consumption and network dependency
Solution Approach 1:
The system pre-generates authentication images with sequence codes stored locally in the device, eliminating the need for real-time network access during authentication. The fingerprint sensor and image display are pre-configured to work together, enabling instant authentication without network latency
Solution Approach 2:
The device performs authentication using its own integrated components (display and fingerprint sensor) without external network services, enabling rapid local verification that improves productivity by eliminating network dependency and reducing authentication time
Data Source
AI summary
A system, device and method for fingerprint authentication using a watermarked digital image is provided. A device includes a display device including a touch screen configured to detect fingerprints; and, a controller. The controller: generates, at the display device, an image that includes, in one or more given areas, image-embedded fingerprint information; detects, at one or more portions of the touch screen respectively corresponding to the one or more given areas, user-fingerprint information representing a fingerprint; implements a comparison between the user-fingerprint information and the image-embedded fingerprint information; and when the comparison between the user-fingerprint information and the image-embedded fingerprint information is successful, implement an access process.